Dec 12 06:44:25.161 INFO checking superpixel-0.1.1 against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 06:44:25.161 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-7/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +3a75e80557a103497cffbcab395a2f37061a77ea-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 12 06:44:25.396 INFO [stdout] 6cb1091142adf0fd87e52f3ed8391766baf13adf21d597d4f26dfb3eda39fa3d
Dec 12 06:44:25.398 INFO running `"docker" "start" "-a" "6cb1091142adf0fd87e52f3ed8391766baf13adf21d597d4f26dfb3eda39fa3d"`
Dec 12 06:44:26.481 INFO [stderr] usermod: no changes
Dec 12 06:44:26.684 INFO [stderr]     Checking image v0.19.0
Dec 12 06:44:32.008 INFO [stderr]     Checking superpixel v0.1.1 (/source)
Dec 12 06:44:34.644 INFO [stderr] warning: unused variable: `idx`
Dec 12 06:44:34.644 INFO [stderr]    --> src/lib.rs:451:17
Dec 12 06:44:34.644 INFO [stderr]     |
Dec 12 06:44:34.644 INFO [stderr] 451 |             let idx = y * width + x;
Dec 12 06:44:34.644 INFO [stderr]     |                 ^^^ help: consider using `_idx` instead
Dec 12 06:44:34.644 INFO [stderr]     |
Dec 12 06:44:34.644 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 12 06:44:34.644 INFO [stderr] 
Dec 12 06:44:34.644 INFO [stderr] warning: unused variable: `klabels`
Dec 12 06:44:34.644 INFO [stderr]    --> src/lib.rs:438:5
Dec 12 06:44:34.644 INFO [stderr]     |
Dec 12 06:44:34.644 INFO [stderr] 438 |     klabels: &Vec<i32>,
Dec 12 06:44:34.644 INFO [stderr]     |     ^^^^^^^ help: consider using `_klabels` instead
Dec 12 06:44:34.644 INFO [stderr] 
Dec 12 06:44:34.644 INFO [stderr] warning: unused variable: `outline_color`
Dec 12 06:44:34.644 INFO [stderr]    --> src/lib.rs:440:5
Dec 12 06:44:34.644 INFO [stderr]     |
Dec 12 06:44:34.644 INFO [stderr] 440 |     outline_color: &image::Rgb<u8>
Dec 12 06:44:34.644 INFO [stderr]     |     ^^^^^^^^^^^^^ help: consider using `_outline_color` instead
Dec 12 06:44:34.644 INFO [stderr] 
Dec 12 06:44:35.056 INFO [stderr] warning: unused variable: `idx`
Dec 12 06:44:35.056 INFO [stderr]    --> src/lib.rs:451:17
Dec 12 06:44:35.056 INFO [stderr]     |
Dec 12 06:44:35.056 INFO [stderr] 451 |             let idx = y * width + x;
Dec 12 06:44:35.056 INFO [stderr]     |                 ^^^ help: consider using `_idx` instead
Dec 12 06:44:35.056 INFO [stderr]     |
Dec 12 06:44:35.056 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 12 06:44:35.056 INFO [stderr] 
Dec 12 06:44:35.056 INFO [stderr] warning: unused variable: `klabels`
Dec 12 06:44:35.056 INFO [stderr]    --> src/lib.rs:438:5
Dec 12 06:44:35.056 INFO [stderr]     |
Dec 12 06:44:35.056 INFO [stderr] 438 |     klabels: &Vec<i32>,
Dec 12 06:44:35.056 INFO [stderr]     |     ^^^^^^^ help: consider using `_klabels` instead
Dec 12 06:44:35.056 INFO [stderr] 
Dec 12 06:44:35.056 INFO [stderr] warning: unused variable: `outline_color`
Dec 12 06:44:35.056 INFO [stderr]    --> src/lib.rs:440:5
Dec 12 06:44:35.056 INFO [stderr]     |
Dec 12 06:44:35.056 INFO [stderr] 440 |     outline_color: &image::Rgb<u8>
Dec 12 06:44:35.056 INFO [stderr]     |     ^^^^^^^^^^^^^ help: consider using `_outline_color` instead
Dec 12 06:44:35.056 INFO [stderr] 
Dec 12 06:44:35.108 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.60s
Dec 12 06:44:35.152 INFO [stderr] su: No module specific data is present
Dec 12 06:44:35.966 INFO running `"docker" "inspect" "6cb1091142adf0fd87e52f3ed8391766baf13adf21d597d4f26dfb3eda39fa3d"`
Dec 12 06:44:36.240 INFO running `"docker" "rm" "-f" "6cb1091142adf0fd87e52f3ed8391766baf13adf21d597d4f26dfb3eda39fa3d"`
Dec 12 06:44:36.468 INFO [stdout] 6cb1091142adf0fd87e52f3ed8391766baf13adf21d597d4f26dfb3eda39fa3d